import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'main.dart';
import 'dart:async';
import 'activate_token.dart';

/// Экран проведения покупки.
class PurchaseScreen extends StatefulWidget {
  @override State createState() => new _PurchaseScreenState();
}

class _PurchaseScreenState extends State<PurchaseScreen> {

	bool _loading = false;

  @override Widget build(BuildContext context) {
    return new Scaffold(appBar: _getAppBar(), body: _getScreen(context));
  }

  AppBar _getAppBar() {
    return new AppBar(title: new Text("Проведение покупки"),
      actions: <Widget>[new IconButton(icon: new Icon(Icons.help_outline), onPressed: () {})]);
  }

  Widget _getScreen(BuildContext context) {
    return new Stack(children: <Widget>[_getScreenContent(), _getProgressIndicator()]);
  }

  Widget _getScreenContent() {
    return new Container(height: 332.0,
        child: new ListView(reverse: true, children: <Widget>[
          new Column(children: <Widget>[
            _getValueWithTitle('ФИО', 'Знаменитый Рокер Паук'),
            _getValueWithTitle('Карта', 'B0399900702'),
            _getValueWithTitle('Вознаграждение', '100%'),
            _getButton(context),
            _getButton(context)])
        ].reversed.toList()));
  }

  Widget _getProgressIndicator() {
    return new Center(child: _loading ? new CircularProgressIndicator() : null);
  }

  Widget _getValueWithTitle(String title, String value) {
  	return new Column(children: <Widget>[
  		new Row(crossAxisAlignment: CrossAxisAlignment.start, children: <Widget>[new Text(title, textAlign: TextAlign.left, style: new TextStyle(color: greyTextColor, fontSize: 14.0))]),
  		new Row(crossAxisAlignment: CrossAxisAlignment.start, children: <Widget>[new Text(value, textAlign: TextAlign.left, style: new TextStyle(color: Colors.black, fontSize: 20.0))])
  	]);
  }

 
  Widget _getButton(BuildContext context) {
    return  new Container(margin: new EdgeInsets.only(top: 36.0), height: 42.0,
     padding: new EdgeInsets.only(left: 40.0, right: 40.0),
            child: new RaisedButton(child: new Text('ЗАРЕГИСТРИРОВАТЬ',
                style: new TextStyle(color: Colors.white)),
                onPressed: null,
                color: primaryColor));
  }

  Widget _getCircularProgressIndicator() {
    return new Center(child: new CircularProgressIndicator());
  }

  _register(BuildContext context) async {
    // const platform = const MethodChannel('com.dinect.checker/instance_id');
    // String url = intUrl + 'tokens/?_dmapptoken=' + intToken;
    // String pos = await platform.invokeMethod('getInstanceID');
    // print(pos);
    // String userAgent = 'dm-checker-test v1.0.1';

    // var body = {
    //   'merchant_shop': merchantShop,
    //   'pos': pos,
    //   'description': userAgent + '-' + pos
    // };

    // print(url);

    // for (var value in body.values) {
    //   print(value);
    // }

    // httpClient.post(url, body: body).then((response) {
    //   print(response.body);
    //   Map parsedMap = JSON.decode(response.body);
    //   token = parsedMap['token'];
    //   platform.invokeMethod('saveToken', {'token' : token}).then((value) {
    //     print(value.toString());
    //   });
    //   setState(() {
    //     loading = false;
    //   });
    //   pushRoute(context, new FinishRegistrationScreen());
    // }).catchError((error) {
    //   print(error.toString());
    // });
  }
}